Bought a used frame with *only* press fitted bearings on both sides for BB30. Do I need more to have an actual bottom bracket? some diagrams online show some sort of “cylinder” between the bearings
Bought a used frame with *only* press fitted bearings on both sides for BB30. Do I need more to have an actual bottom bracket? some diagrams online show some sort of “cylinder” between the bearings
That’s just a protective sleeve- it in theory should make the bearings last longer by stopping rain/grit from getting into the bearings but you’re totally fine to just run it.
3 Comments
Should be fine, stick a crank axle thru that cock sucker and get rolling
Looks like BB30 is
“6806 bearings are pressed directly into the frame.
May use removable c-clips as bearing stops, or the bottom bracket shell may have molded or machined bearing stops”
https://wheelsmfg.com/pages/bb-standards
That’s just a protective sleeve- it in theory should make the bearings last longer by stopping rain/grit from getting into the bearings but you’re totally fine to just run it.